exceptional quality diamonds Investor Presentation Q2 2018 AT A - PowerPoint PPT Presentation

Producing exceptional quality diamonds Investor Presentation Q2 2018

AT A GLANCE AIM LISTED DIAMOND PRODUCER BASED IN KIMBERLY, SOUTH AFRICA Strategy to become a leading miner of high quality medium size kimberlite pipes Focus on fully exploiting Kareevlei Mine with the aim of increasing grade and throughput Exceptional quality, high value diamonds High calibre local team with years of experience gained at De Beers and Petra Well positioned to acquire other value-adding assets Strong market dynamics Q2 2018 Investor Presentation 2

KAREEVLEI MINE SIGNIFICANT RESOURCE INFERRED AS PART OF COMPETENT PERSON’S REPORT Overview Production Kareevlei Mine Snapshot Located in Northern Cape Province, South Africa ~100km NW of Kimberley Northern Cape Province, South Africa Monthly target of >25,000t Discovered by De Beers in 1991 Production quantities becoming more • Located in the Northern Cape Province of South Tenements include Kareevlei consistent each month Africa, ~100km northwest of Kimberley Kimberlites: five pipes from <0.25ha to • Discovered by De Beers Group in 1991 Grades expected to improve as 5.5ha in size production proceeds deeper • Tenements incl the Kareevlei Kimberlites: five K1, K2 and K3: primary focus of kimberlite pipes ranging in size from <0.5 Recovering higher quantities of larger, exploration and “ economically viable ” hectares to <5.6 hectares higher value stones K5: limited data available but previous • K1, K2 and K3 have received the primary focus Average price per carat for 2017 was drill results indicated coarser diamonds of exploration and have been declared $362 than the K1, K2 and K3 pipes INFERRED RESOURCE “ economically viable ” Highest $/carat valuation of $10,091 • K4 is too small however may coalesce with K1 at Pipe Volume Tonnes Carats Grade achieved for a 7.76 carat diamond (m 3 ) deeper levels (cpht) sold in November 2017 for $78,306 • K5 has limited grade and exploration data but K1 632,000 1,594,000 101,000 6.3 Largest diamond to date 11.7 carats consists of coarser material typical of larger which sold for $1670 per carat diamonds K2 947,000 2,461,000 111,000 4.5 K3 1,581,000 3,929,000 147,000 3.7 Total 3,160,000 7,984,000 359,000 Q2 2018 Investor Presentation 3

VIEW OF THE MINE OPERATING MINE DISCOVERED BY DE BEERS IN 1991 1.5km to K5 K1 Waste K2 dumps Plant Tailings Q2 2018 Investor Presentation 4

KIMBERLITE PIPE Q2 2018 Investor Presentation 5

KAREEVLEI DIAMONDS SALES VALUE PER CARAT CONTINUES TO BE ABOVE CPR EXPECTATIONS Value per carat in the top 10 of kimberlites in the world 90% of output is gem quality • Colours range from “D” • High average value achieved without any exceptional diamonds • Average stone size approx. 0.35 carats per diamond - very high for kimberlite diamonds Establishing a reputation for superior quality and shape of diamonds amongst international buyers Q2 2018 Investor Presentation 6

REVIEW OF 2017 SIGNIFICANT PROGRESS WITH IMPROVED OPERATIONS Key indicators improving throughout the year and into 2018 Grade continuing to improve Value per carat remains high and is one of top ten highest value per carat diamond mines in the world Increasing number of larger higher value stones Tender Volume (2) Carats (2) Quarter Volume (1) % Annual (1) cpht (2) $/carat (2) 2017 - 1 6.1% 9,310 4,780 92 1.92 161 20.3% 2017 - 2 31,033 27,106 451 1.66 352 2017 - 3 41.2% 63,163 56,486 1,275 2.26 344 2017 - 4 32.4% 49,641 49,666 1,567 3.16 391 2017 153,147 100% 138,038 3,385 2.45 362 2018 - 1 14.1% 38,781 41,115 1,563 3.8 378 Notes Based on calendar quarters. The percentage for 2018 is based on the full year 2018 guidance target of 275,000 tonnes. Based on the period between tenders which usually take place in the third or fourth week of each month. There is no tender in December. The total carats produced in FY 2017 was 3,728. Q2 2018 Investor Presentation 7

LATEST PRODUCTION RESULTS ON TRACK TO MEET 2018 GUIDANCE Q1 2018 Results 2018 Guidance 2017 Q1 2018 Q1 2018, significant improvement over Q1 Volume (tonnes) 275,000 153,147 38,781 2017 Average grade 3.5-4.5 2.45 3.8 Grade and value per carat exceeded target (cpht) Carats 9,500-12,500 3,728 1,563 Q1 approximately 13% of yearly volume target and 16% of total carat target Revenue per carat 362 362 378 ($/carat) Production is seasonal given the extended Christmas break and the rainy season Guidance for 2018 reiterated following the Q1 results Q2 2018 Investor Presentation 8

KAREEVLEI DEVELOPMENT PLANS TO FAST-TRACK DEVELOPMENT OF OTHER KIMBERLITE PIPES K1 Pipe K5 Pipe Mining commenced & first processing Historic drilling results suggest that coarseness expected June 2018 of the diamonds in K5 should be higher than in K2, which would suggest an increase in value Inferred Pit Grade: 6.3 cpht - 40% higher than per carat K2 Bulk sampling continues and results to date are Opening K1 expected to increase overall grade, encouraging allow greater flexibility in production and more consistent results Q2 2018 Investor Presentation 9

MARKET OPPORTUNITY STRONG MARKET FUNDAMENTALS Market characterised by: Growing global diamond demand • Few large groups concentrating on large Global supply of rough diamonds (in carats) deposits is expected to expand at a CAGR of 3% between 2016 and 2022, peaking in • Small organisations lacking in capital and 2021 expertise Global demand for polished diamond Small kimberlites have been discovered by large jewellery is expected to grow at a CAGR of players but not exploited: 4% between 2016 and 2021 • Too small for De Beers and Petra Improving technology is optimising cutting • Too big / complicated for smaller operators and polishing - greater yields for producers are being realised year on year Source: “ Global Diamonds Metals & Mining, ” Bank of America Merrill Lynch, June 2016; “ The PIPE – diamond intel, ” Morgan Stanley, March 2016 VIA: De Beers Diamond Insight Report Q2 2018 Investor Presentation 10

STRATEGY & DEVELOPMENT PLANS CLEAR PATH TO GROWTH Development Highlights & Next Steps Establish consistent profitability at 1 Kareevlei Developing plans for mining pipes K1, K3 and K5 - bulk sampling commenced at pipe 5 2 Exploration of the remainder of the license Exploit Kareevlei to its fullest extent area being undertaken using satellite imaging Large numbers of discovered pipes exist for 3 Assess other opportunities in a which drilling information can be purchased disciplined and cost effective manner Opportunities regularly brought to BlueRock as one of the few credible miners of medium size pipes Q2 2018 Investor Presentation 11

Adam Waugh, CEO awaugh@bluerockdiamonds.co.uk +44 (0) 7711 673 817 +27 83 583 8731 David Facey, FD dfacey@bluerockdiamonds.co.uk +44 (0) 7810 336 540 SP Angel Corporate Finance LLP SVS Securities plc (NOMAD and Joint Broker) (Joint Broker) Stuart Gledhill Tom Curran stuart.gledhill@spangel.co.uk tom.curran@svssecurities.com +44 (0)20 3470 0470 +44 (0)20 3700 0100